Book excerpt: ASIS Book of The Year Winner as selected by ASIS International, the world's largest community of security practitioners Critical Infrastructure Risk Assessment wins 2021 ASIS Security Book of the Year Award - SecurityInfoWatch ... and Threat Reduction Handbook by Ernie Hayden, PSP (Rothstein Publishing) was selected as its 2021 ASIS Security Industry Book of the Year. As a manager or engineer have you ever been assigned a task to perform a risk assessment of one of your facilities or plant systems? What if you are an insurance inspector or corporate auditor? Do you know how to prepare yourself for the inspection, decided what to look for, and how to write your report? This is a handbook for junior and senior personnel alike on what constitutes critical infrastructure and risk and offers guides to the risk assessor on preparation, performance, and documentation of a risk assessment of a complex facility. This is a definite “must read” for consultants, plant managers, corporate risk managers, junior and senior engineers, and university students before they jump into their first technical assignment.